Question : In two alloys, the ratio of Aluminium to Zinc is 5 : 6 and 3 : 5. If 242 kg of the first alloy and 144 kg of the second alloy are mixed, then the ratio of Aluminium and Zinc in the new alloy will be:
Option 1: 76 : 117
Option 2: 82 : 111
Option 3: 93 : 100
Option 4: 68 : 125
New: SSC CHSL tier 1 answer key 2024 out | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
Correct Answer: 82 : 111
Solution :
Given:
The ratio of Aluminium to Zinc in two alloys is $5: 6$ and $3: 5$.
242 kg of the first alloy to be taken.
Aluminium in the first alloy = $\frac{5}{5+6}×242=110$ kg
Zinc in the first alloy = $\frac{6}{5+6}×242=132$ kg
144 kg of the second alloy to be taken.
Aluminium in the second alloy = $\frac{3}{3+5}×144=54$ kg
Zinc in the second alloy = $\frac{5}{3+5}×144=90$ kg
The ratio of Aluminium and Zinc in the new alloy
= (110 + 54) : (132 + 90)
= 164 : 222
= 82 : 111
So, the ratio of Aluminium and Zinc in the new alloy will be 82 : 111.
Hence, the correct answer is 82 : 111.
Related Questions
Know More about
Staff Selection Commission Combined High ...
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Get Updates Brochure
Your Staff Selection Commission Combined Higher Secondary Level Exam brochure has been successfully mailed to your registered email id “”.
